def p(n):
    for i in range(2, n):
        if n % i == 0:
            return False
    return True

a = input().split()
a = ''.join(a)
a = a.replace('zero', '0').replace('one', '1').replace('two', '2').replace('three', '3').replace('four', '4').replace('five', '5').replace('six', '6').replace('seven', '7').replace('eight', '8').replace('nine', '9')
print(a)

a = int(a)
if a >= 100 and a <= 999:
                prost = []
                for i in range(2, 1000):
                    if p(i):
                        prost.append(i)
        
                mn = 10000
                k = 0
                for i in prost:
                    if abs (i - a) < mn:
                        mn = abs(i - a)
                        k = i
                print(k)
else:
    print("Wrong input")
